Modeling Soil Carbon from Forest and Pasture Ecosystems of Amazon, Brazil
نویسندگان
چکیده
منابع مشابه
Carbon isotope discrimination in forest and pasture ecosystems of the Amazon Basin, Brazil
[1] Our objective was to measure the stable carbon isotope composition of leaf tissue and CO2 released by respiration (dr), and to use this information as an estimate of changes in ecosystem isotopic discrimination that occur in response to seasonal and interannual changes in environmental conditions, and land-use change (forest-pasture conversion). We made measurements in primary forest and pa...
متن کاملCarbon allocation in forest ecosystems
C R E I G H T O N M . L I T T O N *, J A M E S W. R A I C H w and M I C H A E L G . R YA N z§ *Department of Natural Resources and Environmental Management, University of Hawaii at Manoa, 1910 East-West Rd., Honolulu, HI 96822, USA, wDepartment of Ecology, Evolution and Organismal Biology, Iowa State University, 253 Bessey Hall, Ames, IA 50011, USA, zUSDA Forest Service, Rocky Mountain Research...
متن کاملForest and Pasture Carbon Pools and Soil Respiration in the Southern Appalachian Mountains
Our ability to estimate the changes in carbon (C) pools and fluxes due to forest conversion is hampered by a lack of comparative studies. We measured aboveand belowground C pools and soil respiration flux at four forested and four pasture sites in the southern Appalachian Mountains. Aboveand belowground C pools were significantly larger (P < 0.01, t-test) at forested sites relative to pasture s...
متن کاملForest Ecosystems and the Carbon Cycle
The continuous flow of carbon from the land and water through the atmosphere and living organisms makes up the global carbon cycle [1]. It contains reservoirs where carbon is stored and features dynamic flows of carbon between the carbon pools [2]. Forests are one of the largest reservoirs of carbon on Earth [1], and therefore their storage and release of carbon have a great impact on the globa...
متن کاملInfluence of military land uses on soil carbon dynamics in forest ecosystems of Georgia, USA
Soil organic carbon (C) dynamics have been used to assess sustainable land managements in forest ecosystems. Impact, defined as intensive forms of land use that affect the soil function, can change C quantity and quality in soils, leading to a progressive degradation of the ecosystems. Soil CO2 effluxes were studied in five transects located at the Fort Benning military reservation in west-cent...
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ژورنال
عنوان ژورنال: Soil Science Society of America Journal
سال: 2003
ISSN: 0361-5995
DOI: 10.2136/sssaj2003.1879